Newshour Extra

Donald Trump and Hillary Clinton are seen as the most unpopular candidates to have ever stood for the presidency of the United States. So why is it so difficult for a third party candidate to break through and make a real impact? Owen Bennett Jones and his guests discuss whether the US political system, trumpeted as a shining beacon of democracy across the world, really does give the voter the best choice.(Photo: A Trump supporter at the first US presidential debate in September 2016. Credit: Getty Images)